PCI.TXT - PCI Installation Programs for DOS

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Note: Please read this entire document before installing PCI cards.

I. Installing PCI Cards in DOS

	1. Install the PCI communications adapter into an available
	   PCI slot in your system. Refer to the Hardware Installation
	   section in the product's manual. Multiple cards may be installed
	   in a single system.

	2. Boot the machine to DOS.

	3. The system BIOS will assign I/O addresses and an interrupt to
	   each PCI communications adapter present in the system during each
           system boot. The FINDPCI.EXE utility in this directory is used to 
	   display current resource assignments for each card. 

	4. FINDPCI.EXE will display resources for each detected card in the 
	   system. These settings are also stored in the file PCI.INI, located
	   in the same directory as FINDPCI.EXE. The following is a sample output. 

		; PCI.INI

		[CARD1]
		MODEL=7201
		BUS=0
		DEVICE=15
		FUNCTION=0
		PORT1=160
		PORT2=168
		IRQ=15

		[CARD2]
		MODEL=7201
		BUS=0
		DEVICE=16
		FUNCTION=0
		PORT1=190
		PORT2=198
		IRQ=10

	   Each card installed in your system should have a [CARDx] entry displayed
	   by FINDPCI.EXE.

II. Determining Resources Assigned to Each Installed PCI Card
	
	1. Each system motherboard organizes its physical PCI slots according to the
	   current PCI specification. There is not a fixed order or number of slots 
 	   for each motherboard. 

	2. To determine which resources correspond to which PCI card, you may want
	   to add the cards one at a time and run FINDPCI.EXE after each card is 
 	   added. Each PCI slot will have a corresponding BUS, DEVICE, and FUNCTION
	   number. These numbers uniquely identify that slot when running these DOS
	   utilities. Note the slot data for each card that you install.

III. Configuring PCI Cards in DOS

	1. After all PCI cards have been installed a [CARDx] section for each
	   card will appear in the PCI.INI file created by FINDPCI.EXE.

	2. The SETPCI.EXE utility is used to modify any I/O resource assignments
	   for PCI communication ports. Interrupt assignments may not be modified
	   since variation in motherboard interrupt routing techniques makes 
	   modification through the BIOS unreliable.

	3. To modify the assigned I/O resources for any PCI port, edit the PORTx value
	   in the PCI.INI file and run SETPCI.EXE. In the above example, changing the
	   PORT1=160 line to PORT1=3E8 would relocate the first port on CARD1 to address
	   3E8.

	4. SETPCI.EXE uses the following command line syntax. It may be run from the 
	   autoexec.bat file.

		SETPCI /f:PCI.INI

IV. Testing PCI Ports in DOS

	1. After PCI communication ports have been installed and configured using
	   the steps above, these ports may be tested using the SSD.EXE utility
	   found in the /DOS/DIAG directory of this disk. Simply use the current 
	   I/O address and interrupt settings for the card and refer to the directions
	   for using SSD.EXE found in /DOS/DIAG/DIAG.TXT.

V. Using PCI Cards with the SeaCOM DOS Driver

	1. After PCI communication ports have been installed and configured using
	   the steps above, these ports may be used with the SeaCOM DOS driver. The
  	   driver and documentation are located in the /DOS/DRIVERS directory of this
	   disk. If the SeaCOM driver is started from the autoexec.bat file, make 
	   sure that the SETPCI /f:PCI.INI line precedes the SeaCOM entry. Run the 
	   setup utility provided with SeaCOM and enter the current port settings for
	   each PCI COM port that is serviced by the driver.

VI. Troubleshooting PCI Problems

	1. Many motherboards offer advanced CMOS options that control the 
	   assignment of system resources to PCI and ISA slots. Check the 
	   CMOS settings during system startup and make sure that an 
	   interrupt and IO range are available for the slot containing the 
	   PCI communication adapter. Contact the supplier of your system
	   board for further assistance with CMOS configuration.

	2. On the Intel TC430HX motherboard if "Use plug and play OS" in the CMOS 
   	   settings is selected, the BIOS doesn't appear to configure card's
	   IO addresses. FindPCI locates the card, but SSD fails to see ports.

	   Solutions: 

		1. Use Windows 95 or another PnP OS.
              	2. Turn of "Use PnP OS" in CMOS settings.

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